Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 450mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke450 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-30S
The AirTAC SAIJ80X450-30-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 420-450 mm usable travel window, allowing you to dial back the nominal 450 mm stroke by up to 30 mm during commissioning. This fine-tunes the retract end position without adding external stops. Delivering 2513 N of pull force at 0.5 MPa, it handles heavy loads with precision.
This variant uses a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance over standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet (-S) supports AirTAC CMSE reed and DMSE electronic switches for exact position feedback. The PT tapered port threads ensure a tight, reliable pneumatic connection.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×450 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-30S Is Used
Product Changeover
Dial in the 420-450 mm retract position on packaging lines when switching carton sizes, eliminating the need to physically swap cylinders.
Machine Setup
Fine-tune the end-of-stroke position during commissioning to prevent tooling crashes, using the rear stopper instead of external shims.
Variable Diverter
Adjust the retract distance of a sorting arm on a conveyor to handle different package heights on the fly.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-30S the Right Cylinder?
Select this 80 mm bore cylinder when an application requires high thrust (2513 N pull at 0.5 MPa) alongside variable end-stop positioning. If you need less force, stepping down to a 63 mm bore yields 1402 N pull, whereas a 100 mm bore provides 3681 N pull for heavier tooling. The adjustable stroke is ideal for product-size changeovers on a line, offering flexibility that a fixed-stroke SAI cylinder cannot match.
Because the 450 mm stroke is substantial, the 25 mm rod diameter should be guided externally to prevent side-load wear on the seals. The rear adjuster acts purely as a mechanical travel stop and does not lock the load; for position holding without live air pressure, consider an AirTAC SAIL or BSAI cylinder. This model is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-30S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of pull force and 2513 N of push force. At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw lets you shorten the effective stroke by up to 30 mm, creating a 420-450 mm usable travel window. It functions as a mechanical stop to set the end position and does not lock the load without live air.
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